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diff --git a/src/GlobalContext.h b/src/GlobalContext.h
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+/*
+	This file is part of cpp-ethereum.
+
+	cpp-ethereum is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	cpp-ethereum is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * @author Christian <c@ethdev.com>
+ * @date 2014
+ * Container of the (implicit and explicit) global objects.
+ */
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include <map>
+#include <memory>
+#include <boost/noncopyable.hpp>
+#include <libsolidity/ASTForward.h>
+
+namespace dev
+{
+namespace solidity
+{
+
+class Type; // forward
+
+/**
+ * Container for all global objects which look like AST nodes, but are not part of the AST
+ * that is currently being compiled.
+ * @note must not be destroyed or moved during compilation as its objects can be referenced from
+ * other objects.
+ */
+class GlobalContext: private boost::noncopyable
+{
+public:
+	GlobalContext();
+	void setCurrentContract(ContractDefinition const& _contract);
+	MagicVariableDeclaration const* getCurrentThis() const;
+	MagicVariableDeclaration const* getCurrentSuper() const;
+
+	/// @returns a vector of all implicit global declarations excluding "this".
+	std::vector<Declaration const*> getDeclarations() const;
+
+private:
+	std::vector<std::shared_ptr<MagicVariableDeclaration const>> m_magicVariables;
+	ContractDefinition const* m_currentContract = nullptr;
+	std::map<ContractDefinition const*, std::shared_ptr<MagicVariableDeclaration const>> mutable m_thisPointer;
+	std::map<ContractDefinition const*, std::shared_ptr<MagicVariableDeclaration const>> mutable m_superPointer;
+};
+
+}
+}